TL;DR

The NotImplementedError exception indicates that the Pydantic schema is not supported for function calling in the langchain-huggingface package, suggesting a potential limitation or missing implementation in the current version.

Guidance

• The error occurs in the with_structured_output method of huggingface.py, which may require additional implementation or configuration to support Pydantic schema.
• Verify the langchain-huggingface version (currently 1.2.1) and check the documentation or release notes for any known issues or updates related to Pydantic schema support.
• Consider searching for open issues or pull requests in the langchain-huggingface repository that may address this limitation or provide a workaround.
• If possible, try updating to a newer version of langchain-huggingface to see if the issue is resolved, although no specific version is mentioned as a fix.

Notes

The provided information does not include a clear solution or workaround, and the langchain-huggingface version may not be the latest. Without further details or updates, it's challenging to provide a definitive fix.

Recommendation

Apply workaround: Since there is no clear indication of a fixed version, and without more information on potential workarounds or fixes, the best course of action is to explore workarounds such as modifying the code to avoid using Pydantic schema for function calling or waiting for an update to the langchain-huggingface package that addresses this limitation.